Quantum Andreev effect in two-dimensional HgTe/CdTe quantum well/superconductor systems
Qing-Feng Sun, Yu-Xian Li, Wen Long, Jian Wang
DOI 10.1103/PhysRevB.83.115315 · Physical Review B
Active bibliographic source — not scientific approval
Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.
Abstract
The Andreev reflection (AR) in 2D HgTe/CdTe quantum well-superconductor hybrid systems is studied. A quantized AR with AR coefficient equal to one is predicted, which is due to the multi-Andreev reflection near the interface of the hybrid system. Importantly, this quantized AR is not only universal, i.e., independent of any system parameters and quality of the coupling of the hybrid system, it is also robust against disorder as well. As a result of this quantum Andreev effect, the conductance exhibits a quantized plateau when the external bias is less the superconductor gap.
Similar papers
Andreev spectroscopy of doped HgTe quantum wells
similarity 0.94M. Guigou & J. Cayssol
Source status unknown — claims are unverified
Crossed Andreev effects in two-dimensional quantum Hall systems
similarity 0.91Zhe Hou et al.
Source status unknown — claims are unverified
Quantum perfect crossed Andreev reflection in top-gated quantum anomalous Hall insulator–superconductor junctions
similarity 0.89Ying-Tao Zhang et al.
Source status unknown — claims are unverified
Double Andreev reflections in type-II Weyl semimetal-superconductor junctions
similarity 0.89Zhe Hou & Qing-Feng Sun
Source status unknown — claims are unverified
Andreev reflection in edge states of time-reversal-invariant Landau levels
similarity 0.89K. G. S. H. Gunawardana & Bruno Uchoa
Source status unknown — claims are unverified
Spin-dependent Andreev reflection in spin-orbit coupled systems by breaking time-reversal symmetry
similarity 0.89Dibya Kanti Mukherjee et al.
Source status unknown — claims are unverified